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NASA Marshall Space Flight Center

  • Magazine Article
  • TBMG-34394
Published 2019-05-01 by Tech Briefs Media Group in United States

Founded on July 1, 1960, Marshall Space Flight Center in Huntsville, AL is one of NASA’s largest field centers. Marshall engineers designed, built, tested, and helped launch the Saturn V rocket that carried Apollo astronauts to the Moon. Marshall developed new rocket engines and tanks for the fleet of space shuttles, built sections of the International Space Station (ISS), and now manages all the science work of the astronauts aboard the ISS from a 24/7 Payload Operations Integration Center. Marshall also manages NASA’s Michoud Assembly Facility in New Orleans — the agency’s premier site for the manufacture and assembly of large-scale space structures and systems.

LED Lighting Improves Efficiency and Imaging

  • Magazine Article
  • TBMG-34397
Published 2019-05-01 by Tech Briefs Media Group in United States

Rocket engine testing requires a lot of light since all tests are filmed with high-speed cameras to monitor performance; however, those cameras have to adjust to the bright plume from a firing engine, which would black out the rest of the image. Traditionally, that light has been provided by metal halide bulbs.

Interoperable Intelligent Controllers for Process Management and Control Networks

  • Magazine Article
  • TBMG-33929
Published 2019-03-01 by Tech Briefs Media Group in United States

NASA Johnson Space Center developed reprogrammable and interchangeable electronic controllers that can attach to a system or subsystem wirelessly or through plug-and-play capability. Originally designed to work with rocket engines, this technology can control different systems and subsystems. This smart controller recognizes which system it is communicating with once connected to the network and loads the appropriate application to perform the required function in the system. The device enables a common set of spares and can talk to other devices of its kind by relaying information and instructions to other controllers. A prototype can be easily developed using low-cost solutions such as Raspberry Pi to demonstrate functionality.

Rocket Nozzle Side-Load Analysis Software

  • Magazine Article
  • TBMG-33704
Published 2019-02-01 by Tech Briefs Media Group in United States

Lateral nozzle forces are known to cause severe structural damage during testing of any new rocket engine configuration under development. While three-dimensional computational fluid dynamics (CFD) methodology has been demonstrated to describe major side-load physics on rigid nozzles, actual hot-fire tests often show nozzle structure non-rigid flexing behavior during major side-load events. This can lead to structural damage.

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Liquid Rocket Engine: Thrust Chamber Parametric Modeling

Alltec-Rene Nardi Rezende
  • Book
  • R-465
Published 2018-11-15 by SAE International in United States
The great engineering achievement required to overcome most of the challenges and obstacles that prevented turning rocket design from art into science took place in Europe and the United States between the 1930s and the 1950s. With the vast majority of the engines currently in operation developed in the “pre-computer” age, there are new opportunities to update the design methodologies using technology that can now handle highly complex calculations fast. The space sector with an intense focus on efficiency is driving the need for updating, adapting or replacing the old modeling practices with new tools capable of reducing the volume of resources and the time required to complete simulations and analysis. This book presents an innovative parametric model applicable to the project of some elements of the liquid rocket thrust chamber with the level of detail and accuracy appropriate to the preliminary design phase. It addresses the operating characteristics and dimensioning of some thrust chamber elements through a set of equations and parameters, which include thrust or propellant characteristics. The model degree of sophistication was…
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Integrated Multiphysics and Advanced Diagnostics

  • Magazine Article
  • TBMG-32832
Published 2018-09-01 by Tech Briefs Media Group in United States

The objective of this effort was to design, fabricate, integrate, and fly a nuclear thermal rocket without having to build massive ground test facilities. Furthermore, this nuclear rocket would be inspected internally without having to disassemble it. Another aim here was to predict the reliability for a 15-to-20-year lifetime for a surface nuclear power plant essential for supplying power to explorers on the Moon or Mars, all without having to build and test a full-scale reactor. If the performance of these systems could be predicted, one could establish the impact of manufacturing tolerances on the operations of these systems.

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BRIEFS

MOMENTUM: SEPTEMBER 2018

  • Magazine Article
  • 18MOMP09_02
Published 2018-09-01 by SAE International in United States

For the second straight year, Ohio State University's Buckeye Space Launch Initiative team brought a Spaceport America Cup first-place trophy back to campus. Held June 19-23 at the Spaceport America headquarters in New Mexico, the largest annual intercollegiate rocket engineering event hosted over 120 teams from around the world. The Spaceport America Cup features multistage rockets and all chemical propulsion types: solid, liquid and hybrid. Teams are graded on how close their rockets ascend to reaching specified altitudes, as well as through technical and flight readiness reports. The Ohio State team's rocket targeted for an altitude of 10,000 feet took first place in the Student Researched and Designed category, as it flew to 10,080 feet over the desert. The rocket, dubbed “I-O,” was propelled by a solid motor and carried a payload of nine pounds. The team's 40 team members also competed in the 30,000-foot category, which had an unplanned descent at 27,500 feet.

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How Additive Manufacturing is Changing the Aerospace Industry

  • Magazine Article
  • TBMG-29117
Published 2018-06-01 by Tech Briefs Media Group in United States

Additive manufacturing was invented more than 30 years ago and, from small beginnings in prototyping, has developed and grown into a $6 billion industry. While additive manufacturing for aerospace and defense has seen slower adoption than some other industries, the velocity is now visibly increasing. This has been enabled by the ongoing development of additive technologies that apply more increasingly to aerospace and defense -namely better plastics materials, faster 3D printing technologies, focused development of metals materials, and resulting technologies and processes that are increasingly easier to get qualified.

Non-Catalytic Ignition System for High-Performance Advanced Monopropellant Thrusters

  • Magazine Article
  • TBMG-28732
Published 2018-04-01 by Tech Briefs Media Group in United States

Anon-catalytic pyrotechnic ignition system was developed for advanced green monopropellant systems operating with hydroxylammonium nitrate (HAN)-based monopropellant AF-M315E. This technology will provide increased performance and new operating regimes for future NASA missions that employ green propulsion systems. The non-catalytic ignition system is a critical component for future high-thrust, in-space rocket engines that utilize AF-M315E, offering longer thruster life and faster startup than catalytic engines. This work demonstrated the pyrotechnic ignition system in proof-of-concept hot-fire tests showing AF-M315E combustion in a workhorse thruster in a laboratory environment.

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Wrought Nickel and Nickel-Related Alloys

Metals Technical Executive Steering Committee
  • Ground Vehicle Standard
  • J470_201802
  • Current
Published 2018-02-15 by SAE International in United States
This Report presents general information on over 50 alloys in which nickel either predominates or is a significant alloying element. It covers primarily wrought materials, and is not necessarily all inclusive. Values given are in most cases average or nominal, and if more precise values are required the producer(s) should be contacted. This report does not cover the so-called "superalloys," or the iron base stainless steels. Refer to SAE J467, Special Purpose Alloys, and SAE J405, Chemical Compositions of SAE Wrought Stainless Steels, respectively, for data on these alloys.
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